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Subsidiaries with material non-controlling interest - Additional information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subsidiaries with material non-controlling interest
Payments from changes in ownership interests in subsidiaries that do not result in loss of control	$ 0	$ 0	$ 621
Increasedecrease in proportion of ownership interest in subsidiaries that result in dilution of non controlling interests		0.09%

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- References

No definition available.

+ Details

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- Definition

The increase(decrease) in proportion of ownership interest in subsidiaries of the group that result in dilution of non controlling interests.

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No definition available.

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- Definition

The cash outflow for changes in ownership interests in subsidiaries that do not result in a loss of control. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 42A
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-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 42B
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_42B&doctype=Standard
-URIDate 2019-03-27

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